Why do our clothes appear darker when they get wet?

Posted by on
  Why do our clothes appear darker when they get wet? Hi guys, I hope you all will be fine and enjoying. Today in this post we are going to know why do our clothes appear darker when they get wet. So, Let's start.... Any cloth is made from a yarn or fibre. That fibre in turn made of smaller micro-fibre. Some of the photons of light are absorbed but some are reflected and land on our retina and that gives us the sensation of seeing the cloth as having a certain level of brightness.  But when the cloth gets wet the water fills in the gaps between each individual microfiber or yarn. When light falls on the wet cloth, some of it is now more likely to enter the water and be bent away from our eyes. So, some of the light that would have previously been reflected off the cloth back to our eyes is now bent away. Fewer photons of light get back to our eyeball and so the wet cloth appears darker than the dry cloth. But as the water gradually evaporated more and more light is reflected back t
0

Why crushed stones are putted on Railway Track.( क्यों कुचले गए पत्थरों को रेलवे ट्रैक पर डाला जाता है।)

Posted by on

 Why crushed stones are putted on Railway Track.

Hi guys,

I hope you all will be fine and enjoying.You might have wondered why crushed stones are putted on the railway track as shown in picture below.Today in this post I am going to tell you reason behind this.






These crushed stones are collectively known as "Track Blast".Track Blast is packed between the sleepers(concrete regular slabs),and on the sides of railway tracks.

The main purpose of the blast(stones)s to hold sleepers in place,which helps to hold the rails in place.Crushed stones also serve other purposes like-drainning of water beneath and around the tracks,stopping the plant growth to a certain extent and more importantly,holding the tracks firmly even in the case of super heavy trains.

THANK YOU.....

KEEP LEARNING....
  KEEP ENJOYING..... 

😀Now in Hindi😀

क्यों  कुचले गए पत्थरों को रेलवे ट्रैक पर डाला जाता है।
 हाय दोस्तों,

  मुझे उम्मीद है कि आप सभी ठीक होंगे और आनंद ले रहे होंगे। आप सोच रहे होंगे कि क्यों  कुचले गए पत्थरों को रेलवे ट्रैक पर डाला जाता है जैसा कि नीचे चित्र में दिखाया गया है।मैं आपको इसके पीछे का कारण बताने जा रहा हूं।




  इन कुचले गए पत्थरों को सामूहिक रूप से "ट्रैक ब्लास्ट" के रूप में जाना जाता है।ट्रैक ब्लास्ट  स्लिपर(कंक्रीट नियमित स्लैब), और रेलवे पटरियों के किनारों के बीच पैक किया जाता है। 

 ब्लास्ट (पत्थरों) का मुख्य उद्देश्य स्लीपरों को पकड़ना है, जिससे रेलों को जगह पर रखने में मदद मिलती है। क्रश किए गए पत्थर अन्य उद्देश्यों की भी सेवा करते हैं जैसे कि पटरियों के नीचे और आसपास पानी की निकासी, एक निश्चित सीमा तक पौधे की वृद्धि को रोकना। और अधिक महत्वपूर्ण बात, सुपर हैवी ट्रेनों के मामले में भी पटरियों को मजबूती से पकड़ना।

धन्यवाद

सीखते रहीए...
मस्ति करते रहीए..

Location: India

Comments

Post a Comment